Plantronics Discovery 975 Bluetooth Headset for $50This is a great headset.
Newegg's price is $60, and code EMCYTZT1453 applies a $10 discount.
The sound quality is very good, has mostly great reviews, and the earpiece charges while resting in its carrying case.
If you keep it in its carrying case when not in use, average usage will require a carrying case recharge about 1 to 2 times per week.